Organic iron complexes enhance iron transport capacity along estuarine salinity gradients of Baltic estuaries

Herzog, Simon David; Persson, Per; Kvashnina, Kristina; Kritzberg, Emma Sofia

doi:https://doi.org/10.5194/bg-17-331-2020

Articles | Volume 17, issue 2

https://doi.org/10.5194/bg-17-331-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-17-331-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 2

Research article

|

22 Jan 2020

Research article |

| 22 Jan 2020

Organic iron complexes enhance iron transport capacity along estuarine salinity gradients of Baltic estuaries

Simon David Herzog, Per Persson, Kristina Kvashnina, and Emma Sofia Kritzberg

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Final revised paper (published on 22 Jan 2020)
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Preprint (discussion started on 03 Jul 2019)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'iron geochemistry', Anonymous Referee #1, 30 Jul 2019
- AC1: 'Response to referee#1', Simon David Herzog, 04 Oct 2019
RC2: 'Comment', Anonymous Referee #2, 26 Aug 2019
- AC2: 'Response to referee#2', Simon David Herzog, 04 Oct 2019

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Reconsider after major revisions (08 Oct 2019) by Gwenaël Abril

AR by Simon David Herzog on behalf of the Authors (11 Nov 2019) Author's response Manuscript

ED: Publish as is (29 Nov 2019) by Gwenaël Abril

AR by Simon David Herzog on behalf of the Authors (02 Dec 2019) Manuscript

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Short summary

Fe concentrations in boreal rivers are increasing strongly in several regions in Northern Europe. This study focuses on how Fe speciation and interaction with organic matter affect stability of Fe across estuarine salinity gradients. The results confirm a positive relationship between the relative contribution of organically complexed Fe and stability. Moreover, organically complexed Fe was more prevalent at high flow conditions and more dominant further upstream in a catchment.